﻿<p><em>IfcComplexNumber</em> is a representation of a complex number expressed as an array with two elements.
  The first element (index 1) denotes the real component which is the numerical
  component of a complex number whose square roots can be calculated explicitly.
  The second element (index 2) denotes the imaginary component which is the numerical
  component of a complex number whose square roots cannot be determined other
  than through the provision of the square of the imaginary number j where j^2 = -1.
  Note that the imaginary component may be referred to as i in certain references.
</p>

<p>
  Type: ARRAY [1:2] OF REAL
</p>

<blockquote class="history">
HISTORY&nbsp; New type in IFC2x2.
</blockquote>
